2278613157 has 8 divisors (see below), whose sum is σ = 3102792576. Its totient is φ = 1486754592.

The previous prime is 2278613147. The next prime is 2278613159. The reversal of 2278613157 is 7513168722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2278613157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278613159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8080048 + ... + 8080329.

It is an arithmetic number, because the mean of its divisors is an integer number (387849072).

Almost surely, 2^2278613157 is an apocalyptic number.

It is an amenable number.

2278613157 is a deficient number, since it is larger than the sum of its proper divisors (824179419).

2278613157 is a wasteful number, since it uses less digits than its factorization.

2278613157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16160427.

The product of its digits is 141120, while the sum is 42.

The square root of 2278613157 is about 47734.8212209913. The cubic root of 2278613157 is about 1315.9019593340.

The spelling of 2278613157 in words is "two billion, two hundred seventy-eight million, six hundred thirteen thousand, one hundred fifty-seven".